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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
There are several data access methods used to transmit data. Which of the answers below can be described as a method that the responding device cannot initiate any communication independently?
A typical DCS has at least four layers in it's architecture. Valves, switches and transmitters are all under the direct control of which of the layers below?
Ethernet network components provide several ISO layers of transmission control. Which of the network components below has transmission controls on the ISO network layer and possibly the data link layers?
The quality of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the value may be useful, but of diminished quality?
The installation of a SCADA system has several difficulties associated with it. Which of the challenges below would be best defined as one that validates the hardware and software design complies with regulations?
Providing power to remote sites in a SCADA system has several difficulties associated with it. Which of the answers below would be best defined as one that is used for continuous power generation where there are no other options?
A DCS collects a lot of data during the course of operating. Which of the terms below would best describe the database that contains the value of all the parameters and tags, as well as all the programming and the DCS configuration?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to write the contents of a holding register to the slave device
Which answer below is best described as the RS-232 standard for voltage range to transmit a "Mark"?
There are several devices that reside at each layer within the a typical DCS. Which of the levels below is where PLC and SIS controllers reside?
The wired Ethernet transmission standards are defined by the OSI model layers. Which of the answers below is one of those defining layers?
There are several data access methods used to transmit data. Which of the answers below can be described as a method that is suitable for larger networks?
Which of the connectors below is best suited for environments with vibration?
The OSI model describes how a network should be arranged. Which of the layers below defines the media access method and the message frame structure?
The wired Ethernet transmission standards are defined by the OSI model layers. Which of the answers below is one of those defining layers?
There are numerous function block modes which are permitted. Which of the modes below is best described as the mode the function block desires to be in?
The numerous tasks that are accomplished at the same time in a DCS, is a result of the configured software programs that it has . Which of the software programs below will governed by IEC-61131-3?
Alarm management is based upon the process conditions model. Which of the conditions in that model could be described as the optimal operating conditions?
Model based network devices are at the user level of Ethernet/IP. Information of a capabilities or features of a specified device would be contained in which of the text files below?
There has to be a way for data to be communicated to the systems I/O for a HMI application to be effective. Which of the terms below best represents the pool of information for this communication?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the firewall interacts with?
In the protocol specifications of Modbus, there are only four types of registers that can be accessed by the master. Which of the terms below is best described as a analog input memory location?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the switch interacts with?
DCS commonly is considered a computerised control system for a plant that has central operator supervisory control. Which of the terms below is best described as a system that allows for exchange of data throughout, but can have remote systems within the system?
Which of the answers below has the correct amount and kind of parameters of an Foundation field bus AI block?